From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-wr0-x22c.google.com ([2a00:1450:400c:c0c::22c]) by bombadil.infradead.org with esmtps (Exim 4.89 #1 (Red Hat Linux)) id 1ep8AG-0005ld-2Y for barebox@lists.infradead.org; Fri, 23 Feb 2018 07:53:11 +0000 Received: by mail-wr0-x22c.google.com with SMTP id z12so13104593wrg.4 for ; Thu, 22 Feb 2018 23:52:57 -0800 (PST) MIME-Version: 1.0 In-Reply-To: References: <20180223073320.6ubvlzyg76vc72ot@pengutronix.de> From: Yegor Yefremov Date: Fri, 23 Feb 2018 08:52:35 +0100 Message-ID: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: linux.bootargs: export mtdparts from DTS To: Sascha Hauer Cc: barebox On Fri, Feb 23, 2018 at 8:39 AM, Yegor Yefremov wrote: > On Fri, Feb 23, 2018 at 8:33 AM, Sascha Hauer wrote: >> Hi Yegor, >> >> On Fri, Feb 23, 2018 at 08:26:56AM +0100, Yegor Yefremov wrote: >>> My board will be configured via DTS file, that contains an MTD >>> partition table [1]. How can it be automatically exported to >>> global.inux.bootargs.mtdparts? >>> >>> [1] https://git.pengutronix.de/cgit/barebox/tree/arch/arm/dts/am335x-baltos-minimal.dts#n217 >> >> Why would you want to do that? You are not going to start an ancient >> kernel with ATAG support, are you? > > So far I'm using ancient LTS 3.18.x kernel with this DTS [1] and > packaging it via FIT. > > [1] https://github.com/visionsystemsgmbh/onrisc_br_bsp/blob/master/board/vscom/dts/3.15/onrisc-baltos-ir-5221.dts I've installed dtc and dumped my loaded DTB in Linux: nand@0,0 { reg = <0x0 0x0 0x4>; gpmc,we-off-ns = <0x28>; gpmc,oe-on-ns = <0x0>; gpmc,device-nand = "true"; gpmc,cycle2cycle-delay-ns = <0x0>; gpmc,wr-access-ns = <0x28>; gpmc,wr-data-mux-bus-ns = <0x0>; gpmc,adv-rd-off-ns = <0x22>; gpmc,oe-off-ns = <0x36>; gpmc,clk-activation-ns = <0x0>; gpmc,wait-on-write = "true"; elm_id = <0x42>; ti,nand-ecc-opt = "bch8"; gpmc,adv-on-ns = <0x6>; gpmc,adv-wr-off-ns = <0x2c>; ti,nand-xfer-type = "prefetch-polled"; gpmc,wait-monitoring-ns = <0x0>; nand-bus-width = <0x8>; gpmc,device-width = <0x1>; gpmc,cs-rd-off-ns = <0x2c>; gpmc,rd-cycle-ns = <0x52>; #address-cells = <0x1>; gpmc,bus-turnaround-ns = <0x0>; gpmc,cs-on-ns = <0x0>; gpmc,we-on-ns = <0x0>; #size-cells = <0x1>; gpmc,wait-on-read = "true"; gpmc,wr-cycle-ns = <0x52>; gpmc,access-ns = <0x40>; gpmc,sync-clk-ps = <0x0>; gpmc,cs-wr-off-ns = <0x2c>; partitions { compatible = "fixed-partitions"; #addres-cells = <0x1>; #size-cells = <0x1>; partition@260000 { reg = <0x260000 0xfda0000>; label = "UBI"; }; partition@0 { reg = <0x0 0x20000>; label = "SPL"; }; partition@20000 { reg = <0x20000 0x20000>; label = "SPL.backup1"; }; partition@40000 { reg = <0x40000 0x20000>; label = "SPL.backup2"; }; partition@60000 { reg = <0x60000 0x20000>; label = "SPL.backup3"; }; partition@80000 { reg = <0x80000 0x1e0000>; label = "u-boot"; }; }; }; Somehow UBI partition is now the first partition and thus other partitions were not parsed. Cat /proc/mtd says nothing and I have only /dev/mtd0. Yegor _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox